1671567741764 has 6 divisors (see below), whose sum is σ = 2925243548094. Its totient is φ = 835783870880.

The previous prime is 1671567741763. The next prime is 1671567741799. The reversal of 1671567741764 is 4671477651761.

It can be written as a sum of positive squares in only one way, i.e., 1321764102400 + 349803639364 = 1149680^2 + 591442^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1671567741697 and 1671567741706.

It is not an unprimeable number, because it can be changed into a prime (1671567741763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208945967717 + ... + 208945967724.

It is an arithmetic number, because the mean of its divisors is an integer number (487540591349).

Almost surely, 2^{1671567741764} is an apocalyptic number.

It is an amenable number.

1671567741764 is a deficient number, since it is larger than the sum of its proper divisors (1253675806330).

1671567741764 is a wasteful number, since it uses less digits than its factorization.

1671567741764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417891935445 (or 417891935443 counting only the distinct ones).

The product of its digits is 41489280, while the sum is 62.

The spelling of 1671567741764 in words is "one trillion, six hundred seventy-one billion, five hundred sixty-seven million, seven hundred forty-one thousand, seven hundred sixty-four".